photo of Timm Triplett

Timm Triplett

Phone: (603) 862-3073
Office: Philosophy, Hamilton Smith Hall Rm 249H, Durham, NH 03824

My research specializations are in epistemology and ethics. In those areas I have published on the foundationalist-coherentist dispute, the work of Wilfrid Sellars, the justification of morality, computer ethics, and pedagogical issues relating to the teaching of ethics. I've written two books: Morality’s Critics and Defenders – A Philosophical Dialogue and, with colleague Bill deVries, Knowledge, Mind and the Given: Reading Wilfrid Sellars's “Empiricism and the Philosophy of Mind."

Outside of my areas of specialization, I have published in ancient philosophy, women's studies, the sociology of knowledge, metaphilosophy, and the philosophy of color perception.

I participate in the P4C (Philosophy for Children) movement, teaching philosophy in elementary, middle and high schools and working with teachers and education students to incorporate philosophical topics and discussions into their classrooms.

I am interested, both in terms of research and pedagogy, in furthering the idea of a common, universally shared morality.

Courses Taught

  • PHIL 405: Critical Thinking
  • PHIL 500: Workshop
  • PHIL 520: Intro to Eastern Philosophy
  • PHIL 530: Ethics
  • PHIL 570: Ancient Philosophy
  • PHIL 702: Top/Metaphysics&Epistemology


  • Ph.D., Philosophy, University of Massachusetts - Amherst
  • M.A., University of Massachusetts - Amherst
  • B.A., Philosophy, Antioch College

Research Interests

  • Epistemology
  • Ethical theory
  • Foundationalist/coherentist dispute
  • Teaching pre-college philosophy

Selected Publications

  • Triplett, T. (2021). The Role of Certainty. ACTA ANALYTICA-INTERNATIONAL PERIODICAL FOR PHILOSOPHY IN THE ANALYTICAL TRADITION, 36(2), 171-190. doi:10.1007/s12136-020-00440-2

  • Triplett, T. (2017). Teaching Common Morality: Using Bernard Gert's Account of the Moral System in the Classroom. Teaching Ethics: The Journal of the Society for Ethics across the Curriculum, 17(2), 227-248.

  • Triplett, T. (2014). Morality's Critics and Defenders: A Philosophical Dialogue. Indianapolis: Hackett Pub. Retrieved from

  • Triplett, T. (2014). SELLARS'S MISCONSTRUAL OF THE DEFENDERS OF THE GIVEN. History of Philosophy Quarterly, 31(1), 79-99. Retrieved from

  • Triplett, T. (2011). Justifying Morality, Part II: Beyond Justification as Clarification. The Journal of Value Inquiry, 45(4), 403-417. doi:10.1007/s10790-011-9307-8

  • Triplett, T. (2011). Justifying Morality, Part I: Bernard Gert’s Justification. The Journal of Value Inquiry, 45(3), 299-308. doi:10.1007/s10790-011-9294-9

  • Triplett, T., & deVries, W. (2007). Does Observational Knowledge Require Metaknowledge? A Dialogue on Sellars. International Journal of Philosophical Studies, 15(1), 23-51. doi:10.1080/09672550601143086

  • Triplett, T. (1999). Rescher's Metaphilosophy. Metaphilosophy, 30(3), 209-230. doi:10.1111/1467-9973.00122

  • TRIPLETT, T. (1994). Is There Anthropological Evidence that Logic Is Culturally Relative?: Remarks on Bloor, Jennings, and Evans-Pritchard. The British Journal for the Philosophy of Science, 45(2), 749-760. doi:10.1093/bjps/45.2.749

  • TRIPLETT, T. (1988). Azande Logic
    Western Logic?. The British Journal for the Philosophy of Science, 39(3), 361-366. doi:10.1093/bjps/39.3.361

  • Most Cited Publications